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Iron standard specification and metal characteristics from ASTM and SAE are in the table below: 77 0 obj Classification of Metals •Ferrous-those based on iron Steels Cast irons •Nonferrous-all other metals Aluminum, magnesium, copper, nickel, titanium, zinc, lead, tin, molybdenum, tungsten, gold, silver, platinum, and others •Superalloys HEAT TREATMENT OF METALS GENERAL PURPOSE This chapter contains basic information pertaining to properties and identification of metal and heat-treating procedures used for metals. Cast iron is available in six general types: 1. alloyed iron 2. white iron 3. malleable iron 4. compacted graphite iron (CGI) 5. ductile iron 6. gray iron Ironis also alloyed use many types of elements including copper, molybdenum, chromium and nickel. General classification 5. These elements were classified by Lavoisier in to metals and non-metals by studying their properties. (SDjED���i��La0���T�0T� �I%A�U�A��U���$�B�=WI�Z����%��7�V��u�'��M�|_L$���F������CpM+-��w�#�|�#��� �e��.��GE�>JQtq����V�� rC�-��h��vbB�iSe���;xA�F�I �� �4��Ip�j��a�e�,� �a1�!�P ..�6�pAp�gXa!d=�a({a+���� �n����:m����;�h,o@��;-�I��K: Rolling ii. 1. mafia are termed as metal. Based on the ability of various materials to conduct current, the materials are classified as conductors, insulators and the semiconductors. The metals and non-metals differ in their properties. application of external force. P+��~ Y?a ALLOYS are produced by melting or sintering two or more metals or metals and a non-metal together. )�I0i&-@d�~HeA�~@bzj��@� I? h޴�]o�0�����.J4���*k��ZEM���&ȸM�_?S�5���i�>�9'`�� D�GGb�G;2�Љvx��df�(�B��~�� ���e���V���c\���y��!�ŀ^O\��gD��g����U�n^W&F7P��)ReWk�Gd`g�*�U��[!��Z��S4�S$��N5���.� lua@ӻ�2|בֿ�;WD�e�Ex��%�>˰R��\B�T�A��~:}��ȋa�yD�� CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES OF ELEMENTS Mandeleev’s Periodic Law: ... (Alkali metals) and Group-2 elements (Alkaline earth metals) which respectively have ns1 and ns2 outermost electronic configurations. ���l�-�yYU Classification of materials JosepPoch March 07. Nitro Pro 7 (7. h�D�]�0��r�t��lk$Ad�� �݉.4����'t��{��% l6r7qG>.��5�5wIr�\���{�j�i�kvq�֨Pi�ZD���3�΍��l�v��|� �T�ZȒ�?_b�3��1���`$d婝��cu�cG��� �TY!/=..��S�'Ý| ̉�`$vʪ( Classification of metals Metals can be divided into two main groups: ferrous metals are those which contain iron and non-ferrous metals that are those which contain no iron. Conductor is materials that easily conducts or pass the current. 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Metals are natural compounds of earth’s crust, in which they are generally found in the form of metal ores, associated both with each other and with many other elements. Ferrous Metals. Polymers 1. For the many different metals and alloys sold today, nearly as many classification systems exist to keep all the standards straight within the industry. 2012-11-27T05:50:54Z endstream endobj 2 0 obj <>stream Metals And Their Properties- Physical and Chemical All the things around us are made of 100 or so elements. p- Block elements: They belongs to group- 13 to 18. ,'�Ӥ�Z�.�2vy�3d�f!MD�31�����v�!�O�Lˢ����[��O��ʘ)ګ%�L��/�+���H��%~��7i��h0���=�t�� �^�׮���m��OF��^��z �����Z_�~�V�?��aau��W�� endstream endobj 91 0 obj <>stream classification in 1883 and Brezina’s modification of the Tshermak-Rose classification scheme (see Prior, 1920). The ferrous metals themselves can also be classified into "families', and these are shown in figure ( 2 ). 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Later further classifications were tried out as our knowledge of elements and their properties increased. Metals – These are solids which have very low resistivity or very high conductivity). Metals and alloys Materials. �V��[��T¦�i���aER�DDDDDDB&. The first classification of meteorites based on chemical compo-sition was by Farrington (1907), who chemically analyzed irons. … View Notes - 531100- Chapter 8. And is one of the first steps in manufacturing most products. The materials are classified based on their conducting property. OD1643 US Army Correspondence Course Program 6 Credit Hours GENERAL The purpose of this subcourse is to introduce the student to the properties of metals, their characteristics, uses and identification codes. r |��u���.F�P�5H�Ч`Y�:�U�t+�lZ��ط�T��5,VxL Classification of Metal Working Processes 1. The pure metals are rarely used as structural materials as they lack mechanical strength. Ceramic materials 3. application/pdf �a�������VBc`������Ӹal�� �ɿ�aK@"1�"84!�A��,��28M4�j"$V�A��"��3���D��#�mlT0KLU���(�u�d. A standard place setting includes metal cutlery, a polymer napkin, and a ceramic dish. �4��I%Z�z_��]i*_}j��^�-}%�x�WZ�����]y���h��dQ�Ԉ�ߑG�%�ZIU�I$�T�M/�i��H}%Z�M%].+MV�ih��}u�c����%Q��?^��u��WX�B�Ф��T+_]$��_Iw�Z�RK�������� T%����Q�+T�%���z���K�$�W!��N��_����~�+���Z�~���\.�/�zJ����c��I%[K�IwZ�ֵ#UIW�֗_��Q��t�H�z\""?�j�]}RT��al��Z�z���GK����^G�֐h�KK.��Z��f�K�]uz�Ҏ"����5� ����W^��C�Y��ִ��TTzJ�iUUu�� zK�S�B�ڏ��I,�8�i-5ZU ҩuӥ�It�Ҫ��ꯤ����b�C��i�b����������+j#WQU�ª��,/a0�A�P�`�j�aS� Most of the metals are solids in nature except for mercury which shows liquid-like motion. The metal casting processis the oldest and popular method of manufacturing means of designing the desired shapes. 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